Silane based coating of aluminium mold

Jiri Cech (Inventor), Rafael J. Taboryski (Inventor)

    Research output: Patent

    Abstract

    A method of preparing an aluminum mold for injection molding is provided, the method comprises the steps of providing an aluminum mold having a least one surface, subjecting the at least one surface to a gas or liquid phase silane to thereby form an anti-stiction coating, the anti-stiction coating comprising a chemically bonded monolayer of silane compounds on the at least one surface wherein the silane is a halogenated silane. The at least one surface coated with the anti-stiction coating may be configured to withstand an injection molding process at a pressure above 100 MPa. Furthermore, a mold having at least one closed cavity is provided, at least one surface of the at least one cavity being an aluminium surface coated with a silane based coating layer. The silane based anti-stiction coating improves the anti-stiction properties of the mold which may allow for molding and demolding of structures which would otherwise be difficult to mold. The resistance of the coated aluminium mold is significantly improved by applying a silane-based coating layer.
    Original languageEnglish
    IPCB29C 33/56
    Patent numberWO2013/132079
    Filing date12/09/2013
    Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Publication statusPublished - 2013

    Bibliographical note

    DTU reference no: 92580

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